GORASP2 Antibody – Polyclonal

This gene encodes a member of the Golgi reassembly stacking protein family. These proteins may play a role in the stacking of Golgi cisternae and Golgi ribbon formation, as well as Golgi fragmentation during apoptosis or mitosis. The encoded protein also plays a role in the intracellular transport of transforming growth factor alpha and may function as a molecular chaperone. A pseudogene of this gene is located on the short arm of chromosome 2. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2011]

GRASP55: a golgi reassembly-stacking protein (GRASP) protein involved in the stacking of Golgi cisternae. May be involved in the process by which Golgi stacks reform after mitotic breakdown. May regulate the intracellular transport and presentation of a defined set of transmembrane proteins, such as the TGF-alpha receptor. Oligomerization of its N-terminal GRASP domain regulates the formation of Golgi stacks, a process that is regulated by phosphorylation within the C-terminal Ser/Pro-rich domain. Forms a RAB2 effector complex with BLZF1 in the medial Golgi. Interacts with members of the p24 cargo receptors. Interacts with CNIH and the cytoplasmic domain of the TGF-alpha receptor, prior its transit in the trans-Golgi. Two alternatively spliced isoforms have been described.

Protein type: Vesicle; Motility/polarity/chemotaxis

Chromosomal Location of Human Ortholog: 2q31.1

Cellular Component: Golgi membrane; Golgi apparatus; membrane

Molecular Function: protein binding

Biological Process: organelle organization and biogenesis; mitotic cell cycle